A Novel Dual-Band Dual-Sense Circularly Polarized Slot Antenna Design
2018
This paper presents a novel dual-band dual-sense circularly polarized slot antenna design. The dual-band is achieved using a single-layer bended microstrip-fed configuration coupled to two slots. The dual-sense circularly polarization is obtained by an asymmetric slot-ring and L-shaped microstrip-fed in a wide square slot. Simulated results show that the proposed antenna has good circular polarization characteristics for left-hand circularly polarization (LHCP) in the lower band and right-hand circularly polarization (RHCP) in the upper band. The 10dB return loss impedance bandwidths for the lower and upper band are 14.7% and 28.4% respectively. The 3-dB axial ratio (AR) bandwidths are 8.8% and 4.5% for the lower and upper band respectively.
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